William d



W. D; ORGUTT.

ROTARY GUTTER. v

N6. 311,201. A Patented Jan. 27,-1885- by'A qrney.

UNiTED STATES WILLIAM D. OROUTT, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO JAMES H. BUSELL, OFSAME PLACE.

ROTARY CUTTER.

SPECIE'CATION forming part of Letters Patent No. 311,201, dated January 27, 1885.`

Application filed February 8, 1884. (No model.)

To all whom t may concern;

Beit known that I, WILLIAM D. Ocurr, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Botary Cutters, of which the following, taken in connection with the accompanying drawings, is a specification.

My invention relates to rotary cutters for trimming the edges of boot and shoe soles; and it consists of a circular head provided with one or more radial slots cutlongitudinally through its periphery parallel to its axis, in combination with one or more cutter-blades mounted in said slot or slots, and having their outer ends molded to a shape the counterpart of the vde sired shape to be given to the sole-edge, and each provided wit-hathroat and a circumferentially-projecting blade, and arranged and adapted to be adjusted radially of said head, and to be sharpened by grinding it in a plane slightly inclined to a plane out radially through the axis of said head.

It further consists inthe combination of one or more cutting-blades having molded outer surface or surfaces, and adapted to be sharpened by grinding a surface or surfaces at right. angles, or nearly so, to said molded surface or surfaces, and a cutter-head provided with one or more radial slots cut longitudinally through the same to receive said blades, and' a randguard having an annular lip to serve as a gage for setting said cutters.

Figure l of the drawings is an elevation of my improved cutter. Fig. 2 isa sectional ele- 3 5 vation, the cutting-plane being on line x a: on Fig. l. Fig. 3 is a longitudinal section on line y y on Fig. 2, but showing the cutter-blades in elevation. Fig. 4 is a section on line z z on Fig. 3. Fig. 5 is a longitudinal section on line o o on' Fig. 2, showing a modified form of the cutterhead. Figs. 6 and 7 are respectively a front and a side elevation of the cutter-blade.

A is the cutter head, which may have a plain cylindrical periphery, as indicated in Fig. 5, or it may have its periphery molded to the counterpart of the desired shape to be given to the sole-edge, as shown in Fig. 1, and has cut through its periphery one or more slots, c, the sides of which are parallel to each other and to 5o the plane cutting radially through the axis of revolution ofsaid head. In the bottom ofsaid slot or slots is drilled a cylindrical socket extending radially toward the center of the head to receive the shank b ofthe cutter B, as shown in Fig. 4, said cutter being secured therein by means of the set-screw c, as shown in Figs. 2 and 8.

C is the rand-guard disk, secured to thc end of the shaft D by the screw D, and having its outer edgemade quite thin and provided with the inwardly-proj ecting annular lip d, to serve as a gage for setting the cutter or cutters B, as shown in Fig. 3. The cutter B is of a peculiar shape,its outer end being molded to a counterpart of the shape to be given to the sole-edge, and having a width in the direction of the circumference ofthe head about equal to the width of the slot ci, and provided at itsinner end with the cylindrical shank b, by which it is mounted in the socket formed for the purpose in the bot- 7o to m of the slot a. The body of the cutter-tool B has a portion of its front side cutaway, as at e, Figs. 6 and 7, so as to fornithe overhanging blade fand a throat for the escape of the chips. The bladef is sharpened by grinding its front '75 end in a plane slightly inclined to a radial line drawn through the center of the cutter-head, and may be used until the blade f is all worn away to the back or bottom of the throat e.

The cutter-head illustrated is provided with 8o two slots and two cutter-blades; but one onlyl may be used; or, if desired, a greater number .may be used without affecting the principles of my invention; but whatever number of cutting-blades are used it is very important that 8 5 those portions of the periphery of the cutterhead which are between said cutters should be concentric with .the axis of revolution of said head, so as to bear upon the edge of thc sole during the operation of trimming, which pre- 9o vents the cutter taking too rank a hold ofthe sole, and at the same time said concentric surface or surfaces act to rub and set the edge to a certain degree,thus leaving the edge in a better condition when the sole is trimmed than can be 9 5 the case when a cutter is used having a large l number of cutters alternating with grooves or slots which present no bearing-surface to the sole-edge. The outer ends of the cutters B are made slightly eccentric to the-periphery of the roo cutter-head to give the desired clearance,in the usual manner, and the forward or cutting edge of the cutter blade is adj usted to a distance beyond the periphery of the cutter-head equal to the desired thickness of chip to be taken from the sole-edge at each revolution, said adjustment being determined or limited by the outer corner of the rand-cutting lipg coming in contact with the annular lip d of the rand-guard C, as shown in Figs. 3 and 4.

What I claim as new, and desire to secure by Letters Patent of the United States, is-

l. The combination of a circular cutter-head provided with one or more radial slots cut longitudinally through its periphery parallel to its axis, and one or more cutters mounted and adjustable radially in said slots, and having their outer ends molded to the counterpart ofthe decumferentially-projecting blade f, whereby it is adapted to be sharpened by grindingV its front radial or nearly-radial face, substantially as described. A 2. The cutter A, provided with one or more "slots, a, one or more cutter-blades, B, fitted to and arranged to be adjusted radiallyin said slots, and the rand-guard G, provided with the annularlipd, all arranged and adapted to operate substantially as and for the purposes described.

In testimony whereoflhave signed my name to this specificatiomin the presence of two subscribing witnesses,vthis 6th day of February, A. D. l8 84.

WM. D. ORGUTT.

Witnesses:

sired shape to be given to the sole-edge, and

2o each provided with the throat e and the ciri N. G. LOMBARD. WALTER E. LOMBARD. 

